[llvm] [InstrRef][NFC] Delete unused variables (PR #75501)

[Felipe de Azevedo Piovezan via llvm-commits]

https://github.com/felipepiovezan updated https://github.com/llvm/llvm-project/pull/75501

>From e227e3748a661e6187740ee6c1ea95ba5a3238d3 Mon Sep 17 00:00:00 2001
From: Felipe de Azevedo Piovezan <fpiovezan at apple.com>
Date: Mon, 4 Dec 2023 15:09:45 -0800
Subject: [PATCH] [InstrRef][NFC] Delete unused variables

`V` was unused, and all the other deletions follow from that observation.
---
 .../lib/CodeGen/LiveDebugValues/InstrRefBasedImpl.cpp | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/llvm/lib/CodeGen/LiveDebugValues/InstrRefBasedImpl.cpp b/llvm/lib/CodeGen/LiveDebugValues/InstrRefBasedImpl.cpp
index 87a0ba58b14c01..aeb8a20e1f1221 100644
--- a/llvm/lib/CodeGen/LiveDebugValues/InstrRefBasedImpl.cpp
+++ b/llvm/lib/CodeGen/LiveDebugValues/InstrRefBasedImpl.cpp
@@ -1375,16 +1375,9 @@ bool InstrRefBasedLDV::transferDebugValue(const MachineInstr &MI) {
   if (!MI.isDebugValue())
     return false;
 
-  const DILocalVariable *Var = MI.getDebugVariable();
-  const DIExpression *Expr = MI.getDebugExpression();
-  const DILocation *DebugLoc = MI.getDebugLoc();
-  const DILocation *InlinedAt = DebugLoc->getInlinedAt();
-  assert(Var->isValidLocationForIntrinsic(DebugLoc) &&
+  assert(MI.getDebugVariable()->isValidLocationForIntrinsic(MI.getDebugLoc()) &&
          "Expected inlined-at fields to agree");
 
-  DebugVariable V(Var, Expr, InlinedAt);
-  DbgValueProperties Properties(MI);
-
   // If there are no instructions in this lexical scope, do no location tracking
   // at all, this variable shouldn't get a legitimate location range.
   auto *Scope = LS.findLexicalScope(MI.getDebugLoc().get());
@@ -1417,7 +1410,7 @@ bool InstrRefBasedLDV::transferDebugValue(const MachineInstr &MI) {
         }
       }
     }
-    VTracker->defVar(MI, Properties, DebugOps);
+    VTracker->defVar(MI, DbgValueProperties(MI), DebugOps);
   }
 
   // If performing final tracking of transfers, report this variable definition